Tool for cutting tongued boarding



C.` H. BURTON TOOL FOR CUTTING TONGUED BOARDING F'led'April a, 1924 v In i s e A Hor/H1215 5' Patented Apr. 14, 1925.

,UNITED 1,533,305r PATENT oFFtele2.r

CHARLES HERBERT BURTON, 0F WASHINGTON, DISTRICTOF lIDOIU'I-VlfBA.`

mooiJ non' onreine ToNGSUnD BOARDINIG.

Appneation' ined Aprire,

To all whom z'tmag/ concern.'

` provements in Tools for Cutting 'l' Beit known that' L CHAI-:Les H:Boeren, a' 'oitizenof the" United Stated residingat!" /Vashington,A 1nthe Distrlctof Colombia,v

. have VinventedY certa-in new and" useful lm` ngnod Boarding; of whichthe following is' a "speer- Y flication', reference being: had the-reintheI accompanyingdra-Wing;

This invention' r'elatesto an improved tooh particularly adapted forcutting ti'igueandA grooved boarding; liooring; partitionsor the' like,for removing boards'singly therefrom Without disturbing or myuringadjoining a boards and having a blade adapted to be description, whencon'sidered in connection with: the* accompanying dr-awi ugs; formingpait'hereoff and illustrating one"y embodinientfoi?theinvention.H-ln'tliedravvings :V

l"Iigure isa side elevation of a tool!V constructed` in accordance withthe present inveration.I v A v d Figflfils'a siderelevation taken' from'the othersideljof theV tool, the tool being shown' in fulllinfeswithrelation to a. Ifloor atth'e beginning of acutting "operation, and ind`ot` tedS lines v'in' position'- at the" completion of? cuttingoperation.

Fig. 3 is a transverse section on the-'line oE-Figure"2.

t isatop plan viewyand Fig. 5 isa detailperspectiveView of thetooll'without the blade member. i

` I The` invention Comprehends a too'l com;

prisi'nge main body d portion, a' relatively thin bladeon' the: bodyportion disposed longitudinally and projecting 'downi'vardly fromthe"under` side-thereof, a' handleextension-at one endof the bodyportion, a forvvard'extension at the other end ofthe body portionadapted to engagethe Work and acta as "a fulcrum'i'in withdrawing the iblade/"therefrom,and an an-vil part onthebody portionseparate-andindependent 'roni 1924; semi No.1 705,115;

the* handlef- More particularly the `nv'en'f` tion-contemplates thense'of a bladeponitedat oneA end andgradually deoreasmgf in;

Width longitudinally `from said fpointedl end;

and -Y also inthe use of a blade membery formed a separate* part tronithe main bodyT portion with means `for clamping the same' thereto, `andmeans on the body por? tion whereby the resistance strains trans mittedthrough the blade incidentto driv ing the tool willvr be borneby-thebodyportionand not the `clampiiig ine-ansi `While aspecilic embodiment or'theinveiv` tion is illustrated in the drawings; `it will;` of course beunderstood that; changes andvariations in the particularconstructionshown, and the embodiment of the invent-ion 1n other orms,as will appeal to those skilled in the art and falling. Within the' hscope oi' the appended claims, may be prac-` ticed Without departingfrom theV spirit of the invention.

Referring to a detailed description of the` particular embodiment'oi:lthe inventionil'- lustrated in the drawings, l designates' the main bodyportion ofthe tool in the'. form of. a strip or bar portion shownsubstantially rectangular shape in cross section, and 2 is the blade ot'the tool disposed longitudinally of the body portion l andprojeeting'down- Wardly from the under side thereof. The" bladel 2 whichis relatively'thinland"prefi erably constructed' of steel7 has a pointedend portion- 2, and from thispointed end 2f" gradually decreases inwidtli'lengthwise,A as

shown, the blade having end edges?, 2P' and a lower edge 2d extending atan' acute angle to the longitudinal axis of the body' portion l. At itsupperside the body portion l is provided with an anvil or impact part3,` said anvil part 3 being located at one end of' the body portion l atthe wider end portion" of: the blade 2. Extending from one end of thebody portion lis a handle 4,1 and at the other end or' the body portionist anextension 5 that has at its outerendL an en# larged part or head 6adapted to engage theV Work and act as a 'fulcrumin withdrawing theblade 2 of the tool therefrom. The enlarged part or head 6 of a lengthto afford a broad bearing upon which to rocli the tool onI the uppersurfaced theloor board 7 in disengaging `tlie/lialacle` there` from,said enlarged part or; head?, @bridging the meeting faces of theadjoining boards and serving to"suppo`1t'theL tool toy prevent* twistingof the body portion l relatively to the blade, the enlarged part or headV6 being Y preferably disp-osed as shown to entendbelow the plane of theunder surface of the body portion V1, and also serves as a stop to limitthe depth to which the blade 2 isA driven into lthe floor. rPhe enlargedpart or head 6 has a rounded work engaging face 6a, said enlarged partbeing shown cylindrical inY cross section, and provided with a sheath orcovering 8 of felt,rubbervor other suitable material to prevent the samefrom scratch-V ing or marring the surface of the floor Y boards.Thefbody portion l of the .toolis constructed of forged steel or othersuitable material, and preferably the handle 4t and the forwardextension 5 are formed of the same material integral'withthe bo'dy Aably clamped to kthe body portion l.

portion from a continuo-us pieceof niaterial.l In the particularembodiment of the yinvention shown in the drawings, the blade 2", Y.2Cabutting against the walls of the re-v cess. Means for clamping theblade-V within the recess 9 .tothe body portion is provided,

said means `comprising bolts l() and nuts ll, the bolts l0 extendingthrough apertures 12 in the body portion l, and openings 13 in the blade2,v Openings 13 of the blade 2'are` larger than the cross sectional sizeof the bolts 10 and said openings are located and shaped, as shown, sothat the bolts are spaced from the walls of the blade surrounding thebolt openings therein and Vare not subjected to the resistance strainsor ini Jacts transmitted through the blade in driving the tool, the samebeing taken by the body 'por- `tion Vl directly through the walls of therecess 9 thereof. Thev nutsli have ratchet faced portions il, and 14 isa lmember secured to the ,blade 2 and Vhaving spring tongues 14a, leb,adapted to engage the ratchet faces of the nuts andloclr the saineagainst turning. .Y Y

In the use of the tool in removing a board from a. ilooigthe tool,grasped bythe Vhandlel 4, is held in the `position illustrated in Figure2 of the drawings with theblade 2 in alignment with the meeting line ofthev boards, and then driven in between kthe boards'by blows upon theanvil part- 3 by a hammer or the like. After the blade has Vbeen drivendown sufficiently far to sever the rtongue of the board throughout thelength of the blade, the bladeV is disengaged by pulling upwardly uponthe handle e of the tool and rocking the 'tool upon the enlarged part orhead 6. kThe tool Vis then Q Y Y 1,533,305

positioned at another place along the boards vand the operationrepeated.

It will be noted that by the special construction and arrangement ofparts herein- `before described, a -very efficient tool is afforded thancan be easily operated. The tool has a handle separate and distinct fromthe anvil or impact receiving part by which the same can be convenientlyheld while driving the same. The special construction having a-pointedend and gradually decreasV ing in width as combined with the particularconstruction lof' holder or body portion pro vides for the entrance ofthe blade into theY work gradually lengthwise thereof so that vthesamecan be easily driven in between the' boards, and disengagedtherefrom. The

construction is of a strong durable nature,

provision being made for employing a sep arate blade member detachablysecured to the holder, at the same time the construction is such thatthe resistance strains and shocks incidental to the driving of the toolis borne entirely by the body and not by the clamping means. Y.

What I'claimis: l

l. A tool comprising a main body portion, .a blade-on the body portiondisposed longitudinally and projecting downwardly from the under sidethereof, said blade having a cutting edge portion extending at aninclination to said body portion, the blade being adapted togradually'enter and cut the work,

Vio

an anvil part on the body portion at thek Y upper side thereof, and ahandle extension at one'end ofsaid body portion.

2. A tool comprising a lmain body poi'- t-ion, a blade on therbodyportion disposed longitudinally and Aprojecting downwardly from theunder side thereof, saidblade being pointed at one endV and graduallydecreasing in width from said pointed end, an anvil part on the bodyportion located at the upper side thereof near the forward-widestiportion of the blade, a handle extension atv one end of the bodyportion, and a forward extension atthe other end ofthe body portionhaving apartadapted to engage* the work and act as a fulcrum inwithdrawing the blade therefrom.. f

3. fA tool comprising a main body portion, a blade on `the body portiondisposed longitudinally and projecting downwardly from the under sidethereof, an anvil part on the body portion at the upper side thereof, ahandle extension at one end 'of said body portion, and a forwardextension at the other end of the body portion having a partextendingbelow the planejof the under Vface of the body portion adaptedto engage the work and act as a fulcrum in withdrawing the blade fromthe work."

' 4. A tool comprising a main body portion, a blade on the body portiondisposedlongilio the under side thereof, an anvil part on the bodyportion at the upper side thereof, a handle extension at one end of thebody portion and a forward extension at the other end of the bodyportion having an enlarged part at its outer end extending below theagainst which the upper edge of the blade member abuts, means forclamping the blade to one side of the body portion, said means includingbolts extending laterally from the body portion at one side thereof, andthrough openings in the blade member, and

,clamping nuts to engage the bolts, the bolt opening of the blade beingof a size substantially greater than the cross sectional size of thebolts and arranged so that the bolts at the under side thereof arespaced from the blade, an anvil part on the body portion at the upperside thereof, a handle extension at one end of the body portion, and aforward extension at the other end of the body portion having a partadaptedto engage the work and act as a'fulcrum in withdrawing y theblade therefrom.

6. 1A tool comprising a main body portion, a separate blade memberdisposed longitudinally and projecting downwardly from the under sidethereof, the body portion hav ing a rectangular shaped recess in oneside thereof forming a seat or socket for the blade member, the blademember being adapted to fit within the said recess with its upper edgeand end edges abutting against walls of the recess, means for clampingthe blade within the recess to one side of the body portion, said meansincluding bolts extendino laterallyfrom the body portion at one sitethereof and through openings in the blade member, and clamping nuts toengage the bolts, the bolt apertures in the blade member being of a sizesubstantially greater than the cross sectional size of the bolts andarranged so that the bolts are spaced at their side and bottom facesfrom the blade, an anvil part on the body portion at the upper sidethereof, a handle extension at one end of the body portion, and aforward extension at the other end of the body portion having a partadapted to engage the work and act as a fulcrum in withdrawing the bladetherefrom.

In testimony whereof I hereunto aiiix my signature in the presence oftwo witnesses.

CHARLES HERBERT BURTON.

Witnesses:

CHAs. H. GURLLY Jr., G. SIGMUND.

